Daily Dispersion Outlook
Issued by NWS Pendleton, OR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7
732
AUUS46 KPDT 171206
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
505 AM PDT THU AUG 17 2017

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-8 MPH.         SW 5-9 MPH.
TRANSPORT WINDS               S 7-13 MPH.         SW 7-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI AUG 18        FAIR.

VENTILATION INDEX (CATEGORY)  82 (POOR).          391 (FAIR).
OUTLOOK FOR FRI AUG 18        572 (FAIR).

FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 0-6 MPH.          VRB 0-4 MPH.
TRANSPORT WINDS               NW 4-7 MPH.         W 2-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI AUG 18        POOR.

VENTILATION INDEX (CATEGORY)  48 (POOR).          152 (POOR).
OUTLOOK FOR FRI AUG 18        212 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-4 MPH.        NW 2-6 MPH.
TRANSPORT WINDS               SW 0-4 MPH.         W 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI AUG 18        GOOD.

VENTILATION INDEX (CATEGORY)  30 (POOR).          287 (POOR).
OUTLOOK FOR FRI AUG 18        384 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      238 (POOR)
ELLENSBURG    311 (FAIR)
GOLDENDALE    195 (POOR)
TRI-CITIES    234 (POOR)
WALLA WALLA   457 (FAIR)
YAKIMA        149 (POOR)
BEND          406 (FAIR)
PRINEVILLE    413 (FAIR)
ENTERPRISE    238 (POOR)
HERMISTON     350 (FAIR)
JOHN DAY      423 (FAIR)
LA GRANDE     302 (FAIR)
MADRAS        339 (FAIR)
MEACHAM       307 (FAIR)
PENDLETON     432 (FAIR)
REDMOND       413 (FAIR)
SENECA        457 (FAIR)
THE DALLES    288 (POOR)

METEOROLOGICAL INFORMATION PROVIDED IN THIS PRODUCT REPRESENTS ONLY
SOME OF THE FACTORS USED IN BURN DECISIONS.  BURN DECISIONS ARE
OUTSIDE THE PURVIEW OF THE NATIONAL WEATHER SERVICE.

THE VENTILATION INDEX IS A TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS.  A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE AT THE FOLLOWING ADDRESS:
HTTP://WWW.WRH.NOAA.GOV/PDT/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.
$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.